Plural burner gas cooker

Abstract

In an outdoor type gas fired cooker supported on a hollow stanchion containing a valve for each of a plurality of burner sections and a mixing tube extending between each valve and a burner section, the stanchion having an opening for access to the valve controls and shuttered primary air openings in the mixing tubes, the improvement wherein the upstream ends of the mixing tubes are secured against displacement relative to the valve outlets owing to thermal warpage by a strut-tie member secured to the mixing tubes adjacent the primary air shutters, this member having an extension which passes through a slot in a wall of the cooker to facilitate insertion of the mixing tubes into the stanchion only when the shutters are facing in the proper direction for access through the stanchion opening.

I claim: 
     
       1. In a gas burner assembly having at least two burner sections and support means therefor, a corresponding number of fuel gas supply valves, a mixing tube for each valve having an upsteam end for receiving gas from the valve and a downstream end in gas delivering relation to a said burner section, said valves being mounted in a housing having an access opening, each mixing tube having a primary air opening adjacent its upstream end adjustable by a shutter, said shutters having adjustment means at like sides of said mixing tubes accessible through said access opening in assembled relation of said parts, said support means having a wall with an opening through which said mixing tubes are insertable to position said upstream ends in gas receiving relation to outlets on said valves, improved structure which comprises, a substantially rigid member anchored to and extending between said mixing tubes,   said member forming a strut and a tie effective to retain said upstream ends in properly positioned relation to said valve outlets against thermal warpage of said parts incidental to operation of said burner sections,   said member having a portion which projects laterally of said mixing tubes to such an extent that the lateral dimension of the combined member and mixing tubes is greater than the general cross dimension of said wall opening,   said wall having a notch which opens into said wall opening and extends outwardly thereof laterally of said mixing tubes,   said wall opening and notch having a combined lateral dimension greater than that of said member and mixing tubes and said portion of said member being dimensioned to pass through said notch whereby to facilitate insertion of said mixing tubes through said wall opening when said portion is aligned with said notch,   said notch being so located that when said member portion is aligned therewith said adjustment means face in the direction of said access opening to insure accessibility of said adjustment means through said access opening when said upstream ends are inserted into gas receiving relation to said valve outlets.   
     
     
       2. The structure defined in claim 1 wherein said member is located generally adjacent said adjustment means. 
     
     
       3. The structure defined in claim 2 wherein said downstream ends of said mixing tubes are anchored to a common plate in turn anchored to said burner sections. 
     
     
       4. The structure defined in claim 1 wherein each mixing tube has a venturi restriction immediately longitudinally downstream of said adjustment means, each restriction having a throat, said member being anchored to the exteriors of the portions of said mixing tubes forming said throats. 
     
     
       5. The structure defined in claim 4 wherein said member comprises a metal strap having a thickness, a width greater than said thickness extending longitudinally of said tubes, and a length greater than said width extending laterally of said tubes. 
     
     
       6. The structure defined in claim 5 wherein said strap is substantially flat. 
     
     
       7. The structure defined in claim 1 wherein said portion of said member projects laterally away from one of said tubes, said member having another portion which projects laterally away from the other of said tubes and in a direction lateral of the first said portion, said other portion having a dimension in said direction which is greater than the width of said notch measured in said direction so that said other portion cannot pass through said notch. 
     
     
       8. The structure defined in claim 7 wherein said other portion projects in said direction away from a laterally outer edge portion of said other tube. 
     
     
       9. The structure defined in claim 8 wherein said direction is generally at a right angle to the first said portion. 
     
     
       10. The structure defined in claim 7 wherein said other portion projects in said direction away from a laterally outer edge portion of said other tube, said direction being generally at a right angle to the first said portion, each mixing tube having a venturi restriction immediately longitudinally downstream of said adjustment means, each restriction having a throat, said member having portions shaped to fit around portions of said throats, said member being anchored to the exteriors of portions of said mixing tubes laterally adjacent said throats. 
     
     
       11. The structure defined in claim 1 wherein each said mixing tube has a venturi restriction immediately longitudinally downstream of said adjustment means, each restriction having a throat, said member being anchored to the exteriors of portions of said mixing tubes laterally adjacent said throats. 
     
     
       12. The structure defined in claim 11 wherein said member has portions shaped to fit around portions of said throats.